Safety umbrella



FIG. 1 is a front elevation view of a safety umbrella shown in a closed configuration;

FIG. 2 is a right side elevation view of the safety umbrella shown in a closed configuration;

FIG. 3 is a front elevation view of the safety umbrella shown in an open configuration;

FIG. 4 is a bottom isometric view of the safety umbrella shown in an open configuration; and,

FIG. 5 is a top isometric view of the safety umbrella shown in an open configuration.

The features shown in broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a safety umbrella, as shown and described. 